Combination car and train-pipe coupling



0. HEBERT.

COMBINATION CAR A-ND TRAIN PIPE CUPLING. APPLICATION FILED DEC.3,'I9I1.

ip426p732. Patented Aug. 22, 1922.

WIM/8858 www@ ONESIME HEBERT, F OKLAHOMA, OKLAHOMA, .ASSGNOR TO UNIVERSAL CAR AND HOSE COUPLEB COMPANY, GIP PHOENIX, ARIZONA, A CORPORATION.

COMBINATON CAR AND TRAN-PIPE QOUELING.

Specicaticn of Letters atent.

Patented Aug., 22, 1922,

Application led December 3, 1917. Serial No, 205,103.

To all whom t may conce/fn.' j

Be it known that l, ONEsrMn HEBERT, a citizen of the United States, and a resident of Oklahoma city, in the county of Oklahoma and State of Uklahoma, have invented certain new and useful improvements in Combination Car and Train-Pipe Couplings, of which the following is a specification;

My invention relates to improvements in draft appliances, consisting more particularly of the improvement in combination car the provision of pipe blocks on each coupling head, in which the train pipes are so arranged that a tight compression oint will be formed between the pipes, upon coupling the heads together.

'Other objects and advantages will appear in the iliollowing specification, reference be,- ing had to the z'.ccompanyinpl drawing, in which:

.Figure 1 is a side elevation of a car couplincY showing the arrangement of the pipe blocks.

Figure 2 is a vertical section of the parts shown in Figure 1.

Figure 3 is a detail cross section on the line of Figure 2, disclosing the ar,- rangement of the coupling devices inside of the heads.

Figure er is an enlarged detail view of'a portion of one of the pipe blocks.

Figure 5 is a vertical section taken substantially on the line 5---5 of Figure et, and

Figure 6 is a. detail view showing how the compression joint is formed.

In carrying out my invention I provide the coupling heads l which contain Jfeatures covered by another application. rlie essence of the present invention lies in the peculiar arrangement of the pipe. blocks 31 carried by each coupling head. A brief description fof' the principal structural features of the coupling heads 1 in order to impart a clearer understanding of the relationship of the pipe blocks to the coupling heads, is thought to be of advantage.

Briefly then, the coupling heads 1 include the knuckles 3 which are arranged to interlock with the companion coupling heads as shown in Figure 3. llach knuckle has a shoulder which engages the edge of a lock opening la in the companion coupling heads, and the portion l-b of the knuckle adjacent to the wall of the coupling is cut away to provide a' wear compensating space. This space also enables the automatic maintenance of a constantly tight joint between the train pipes. Dogs 24 operate to disengage the knuckles. The dogs 24 include short levers QGYby which the dogs are operated.

' Each knuckle has an ear 7 which partly projects through an opening in the coupling head, and is mounted on a pin supported in ears 10 cast on the outside of the coupling head. Each head has a coupling pin on which the end member 16 of a drawbar 19' is mounted. rlhe drawbar is made in sections and has a spring 24 between the sections. The inter-engagement of the oppositely inclined surfaces of a bridge 17 on the members 16, with the inclined surfaces 18 of a recess in each head 1, keeps the head in alignment with the drawbar.

Proceeding nowy with the description of the invention, it should be observed that the lower end of each coupling pin 15 projects beyond the bottom of the coupling head 1 as at 15a. This projection of the coupling pinl forms an abutment for one end of a base 32 of the pipe block 31. The base 32 is an integral part of the pipe block, but itv will be observedin 1Figure 4, that it extends a short distance toward the rear, where it engages the abutment 15a. The base is so shaped to form flanges 32a at the sides as shown in Figure 5.

The flanges 32 engage guides 30 cast upon the bottom of the coupling head 1. The pipe block 31 is simply slid between the guides until the projecting end of the base 32 engages the abutment 15a. The pipe block 31 may be held in position either by friction or some suitable device for fastening the pipe block to the. coupling head.

Each pipe block 31 has one of more longitudinalpassages or bores 31, in which short pipe sections 33 are located. When the coupling is'liarrangedtofbe Vused on passenger cars, the pipe'blockl is constructed for three train pipes, but when the coupling is used on freight cars, the pipeblock lis constructed for only a single train pipe; Each pipegsection extends a shortdistance beyond the ends of the pipeA blocks. .These projecting ends of the pipesection yare threadedto receive nuts-.34.`

ITheI fnu't'sBLI-.act as adjusting means for the pipe section, and ;also clamp it in place. Whenfit is desired to vadjust the pipe section, one or the other of the nuts :is loosened and the y.pipe section shifted accordingly. The niitslv are thenlagaintightened until they enf gagejthe ends' of the pipe vblock asshown in Figure 4.. A train pipe 35 is Vfastened to the innerl end of eachpipe section 33 by ya cou- Pling 36.y

Auyshort'piece oftubing ory hose 37 is clamped. on the outer projecting end of the pipe'section 33, by a clamp'.` The. hose 37 is longerthanthe projecting end of the pipe section.y In otherI words, the end of the hose., inormfallly extends slightly beyond the end ofthe projecting end ofthe pipesectiomand forms a means tor holdinga gasket). These normally'extendingy portions are pressedftogether/tightly when in the'coupled position as imFigure 6. i

Theop'eration of Athe train pipe .coupling will be clearlyiunderstood from the-follow` ing, when taken in connection withthe iore-V Llcouple the heads l together when properly presented lto each other. The adjustment of cachot the pipe sections 33 in the pipe blockI 3l is such, that the projecting ends of each Athe pieces lhose 57k `willlbe `tightly pressed together' andthe gasket I39 will be in such tight'engagement that no fluid can escape. A tight compression joint is thus automatically established. The ends of the hose pieces 37 will, ol course, be irst lto engagey when the heads 1 `are coupled together'. These projecting portionsv will thns bei compressed longitudinally and spread radially. Thehose' pieces ,are made of 'some flexible material as rubber, and it can readily be understood lthat when the action described takes place, the jointbetween the'pipe sectionswill be very-effective in retainingl the Huid in the pipe. rlhe gaskets 39 are also made of some slightly compressible material, so that the joint will be very tight.

ln actual'practi'ce, the gaskets andthe pro`A jecting endsoi'f thehose pieces will be so arranged'that thegaskets will not drop out.

` The endof the hose piece is stretched to admitthe gasket and thus holds the gasket in place. 1 Y

Vhile Y the construction and arrangement oi' the device :as illustrated in the accompanying drawing is that otra.generallypreterred form, obviously modifications vand vchanges may be madewithout departing `from the spirit of the inventionor the scope of the claims.

I claim z i 1. A car coupler head'in combinationwith a detachable pipe block, the connections b`etween said ,head land block'comprising an abutment on said head in contact' withthe rear oi the pipe block adapted to yresist rear` ward movement of v*said pipe block.A

2. A car coupler head in combination withl a detachablepipeblock, theconnections between said head and block comprisinga way open at both"ends in one and a tongue in the other whereby the pipe block maybe engaged with the coupler head by a longitudinal movement in' either direction, and a`l removable abutment on said head Aarranged to engage the rear end of said block when in place.

3. A car coupler head provided with a detachably mounted pipe block and a pin passing vertically through said head for connecting said head to a drawv bar, said pin serving also as an abutment for said pipe block.

4. A car coupler head in combination with a detachable pipe block, the connection be! tween saidhead and block comprising an open ended undercut way in one and a corrk responding tongiie in the other, wherebythe pipe block may be engaged with the coupler head vby a longitudinal movement, an abutment on said head against which the reary ot thepipe block is rigidly lseatedand which resists rearward movement of said pipe block.

oNnsiMn HEBERT.

lOO 

